506064743987 has 4 divisors (see below), whose sum is σ = 552070629816. Its totient is φ = 460058858160.

The previous prime is 506064743959. The next prime is 506064744023. The reversal of 506064743987 is 789347460605.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 506064743987 - 2¹⁶ = 506064678451 is a prime.

It is a super-2 number, since 2×506064743987² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506064743957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23002942898 + ... + 23002942919.

It is an arithmetic number, because the mean of its divisors is an integer number (138017657454).

Almost surely, 2^506064743987 is an apocalyptic number.

506064743987 is a deficient number, since it is larger than the sum of its proper divisors (46005885829).

506064743987 is a wasteful number, since it uses less digits than its factorization.

506064743987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46005885828.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 506064743987 in words is "five hundred six billion, sixty-four million, seven hundred forty-three thousand, nine hundred eighty-seven".